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-rw-r--r--arch/i386/kernel/cpu/common.c15
-rw-r--r--arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c1
-rw-r--r--arch/i386/kernel/cpu/cpufreq/p4-clockmod.c1
-rw-r--r--arch/i386/kernel/cpu/cpufreq/powernow-k8.c1
-rw-r--r--arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c1
-rw-r--r--arch/i386/kernel/cpu/intel_cacheinfo.c87
-rw-r--r--arch/i386/kernel/cpu/mcheck/p6.c11
-rw-r--r--arch/i386/kernel/cpu/mtrr/if.c119
-rw-r--r--arch/i386/kernel/cpu/proc.c2
9 files changed, 142 insertions, 96 deletions
diff --git a/arch/i386/kernel/cpu/common.c b/arch/i386/kernel/cpu/common.c
index 9ad43be9a01..74145a33cb0 100644
--- a/arch/i386/kernel/cpu/common.c
+++ b/arch/i386/kernel/cpu/common.c
@@ -573,6 +573,7 @@ void __devinit cpu_init(void)
int cpu = smp_processor_id();
struct tss_struct * t = &per_cpu(init_tss, cpu);
struct thread_struct *thread = &current->thread;
+ struct desc_struct *gdt = get_cpu_gdt_table(cpu);
__u32 stk16_off = (__u32)&per_cpu(cpu_16bit_stack, cpu);
if (cpu_test_and_set(cpu, cpu_initialized)) {
@@ -594,24 +595,16 @@ void __devinit cpu_init(void)
* Initialize the per-CPU GDT with the boot GDT,
* and set up the GDT descriptor:
*/
- memcpy(&per_cpu(cpu_gdt_table, cpu), cpu_gdt_table,
- GDT_SIZE);
+ memcpy(gdt, cpu_gdt_table, GDT_SIZE);
/* Set up GDT entry for 16bit stack */
- *(__u64 *)&(per_cpu(cpu_gdt_table, cpu)[GDT_ENTRY_ESPFIX_SS]) |=
+ *(__u64 *)(&gdt[GDT_ENTRY_ESPFIX_SS]) |=
((((__u64)stk16_off) << 16) & 0x000000ffffff0000ULL) |
((((__u64)stk16_off) << 32) & 0xff00000000000000ULL) |
(CPU_16BIT_STACK_SIZE - 1);
cpu_gdt_descr[cpu].size = GDT_SIZE - 1;
- cpu_gdt_descr[cpu].address =
- (unsigned long)&per_cpu(cpu_gdt_table, cpu);
-
- /*
- * Set up the per-thread TLS descriptor cache:
- */
- memcpy(thread->tls_array, &per_cpu(cpu_gdt_table, cpu),
- GDT_ENTRY_TLS_ENTRIES * 8);
+ cpu_gdt_descr[cpu].address = (unsigned long)gdt;
load_gdt(&cpu_gdt_descr[cpu]);
load_idt(&idt_descr);
diff --git a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
index 822c8ce9d1f..caa9f771134 100644
--- a/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
+++ b/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.c
@@ -32,6 +32,7 @@
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <linux/compiler.h>
+#include <linux/sched.h> /* current */
#include <asm/io.h>
#include <asm/delay.h>
#include <asm/uaccess.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
index aa622d52c6e..270f2188d68 100644
--- a/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
+++ b/arch/i386/kernel/cpu/cpufreq/p4-clockmod.c
@@ -28,6 +28,7 @@
#include <linux/cpufreq.h>
#include <linux/slab.h>
#include <linux/cpumask.h>
+#include <linux/sched.h> /* current / set_cpus_allowed() */
#include <asm/processor.h>
#include <asm/msr.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
index 58ca98fdc2c..2d5c9adba0c 100644
--- a/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
+++ b/arch/i386/kernel/cpu/cpufreq/powernow-k8.c
@@ -32,6 +32,7 @@
#include <linux/slab.h>
#include <linux/string.h>
#include <linux/cpumask.h>
+#include <linux/sched.h> /* for current / set_cpus_allowed() */
#include <asm/msr.h>
#include <asm/io.h>
diff --git a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
index c397b622043..1465974256c 100644
--- a/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
+++ b/arch/i386/kernel/cpu/cpufreq/speedstep-centrino.c
@@ -22,6 +22,7 @@
#include <linux/init.h>
#include <linux/cpufreq.h>
#include <linux/config.h>
+#include <linux/sched.h> /* current */
#include <linux/delay.h>
#include <linux/compiler.h>
diff --git a/arch/i386/kernel/cpu/intel_cacheinfo.c b/arch/i386/kernel/cpu/intel_cacheinfo.c
index 9e0d5f83cb9..4dc42a189ae 100644
--- a/arch/i386/kernel/cpu/intel_cacheinfo.c
+++ b/arch/i386/kernel/cpu/intel_cacheinfo.c
@@ -3,6 +3,7 @@
*
* Changes:
* Venkatesh Pallipadi : Adding cache identification through cpuid(4)
+ * Ashok Raj <ashok.raj@intel.com>: Work with CPU hotplug infrastructure.
*/
#include <linux/init.h>
@@ -10,6 +11,7 @@
#include <linux/device.h>
#include <linux/compiler.h>
#include <linux/cpu.h>
+#include <linux/sched.h>
#include <asm/processor.h>
#include <asm/smp.h>
@@ -28,7 +30,7 @@ struct _cache_table
};
/* all the cache descriptor types we care about (no TLB or trace cache entries) */
-static struct _cache_table cache_table[] __devinitdata =
+static struct _cache_table cache_table[] __cpuinitdata =
{
{ 0x06, LVL_1_INST, 8 }, /* 4-way set assoc, 32 byte line size */
{ 0x08, LVL_1_INST, 16 }, /* 4-way set assoc, 32 byte line size */
@@ -117,10 +119,9 @@ struct _cpuid4_info {
cpumask_t shared_cpu_map;
};
-#define MAX_CACHE_LEAVES 4
static unsigned short num_cache_leaves;
-static int __devinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
+static int __cpuinit cpuid4_cache_lookup(int index, struct _cpuid4_info *this_leaf)
{
unsigned int eax, ebx, ecx, edx;
union _cpuid4_leaf_eax cache_eax;
@@ -144,23 +145,18 @@ static int __init find_num_cache_leaves(void)
{
unsigned int eax, ebx, ecx, edx;
union _cpuid4_leaf_eax cache_eax;
- int i;
- int retval;
+ int i = -1;
- retval = MAX_CACHE_LEAVES;
- /* Do cpuid(4) loop to find out num_cache_leaves */
- for (i = 0; i < MAX_CACHE_LEAVES; i++) {
+ do {
+ ++i;
+ /* Do cpuid(4) loop to find out num_cache_leaves */
cpuid_count(4, i, &eax, &ebx, &ecx, &edx);
cache_eax.full = eax;
- if (cache_eax.split.type == CACHE_TYPE_NULL) {
- retval = i;
- break;
- }
- }
- return retval;
+ } while (cache_eax.split.type != CACHE_TYPE_NULL);
+ return i;
}
-unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
+unsigned int __cpuinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
{
unsigned int trace = 0, l1i = 0, l1d = 0, l2 = 0, l3 = 0; /* Cache sizes */
unsigned int new_l1d = 0, new_l1i = 0; /* Cache sizes from cpuid(4) */
@@ -284,13 +280,7 @@ unsigned int __devinit init_intel_cacheinfo(struct cpuinfo_x86 *c)
if ( l3 )
printk(KERN_INFO "CPU: L3 cache: %dK\n", l3);
- /*
- * This assumes the L3 cache is shared; it typically lives in
- * the northbridge. The L1 caches are included by the L2
- * cache, and so should not be included for the purpose of
- * SMP switching weights.
- */
- c->x86_cache_size = l2 ? l2 : (l1i+l1d);
+ c->x86_cache_size = l3 ? l3 : (l2 ? l2 : (l1i+l1d));
}
return l2;
@@ -301,7 +291,7 @@ static struct _cpuid4_info *cpuid4_info[NR_CPUS];
#define CPUID4_INFO_IDX(x,y) (&((cpuid4_info[x])[y]))
#ifdef CONFIG_SMP
-static void __devinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
+static void __cpuinit cache_shared_cpu_map_setup(unsigned int cpu, int index)
{
struct _cpuid4_info *this_leaf;
unsigned long num_threads_sharing;
@@ -334,7 +324,7 @@ static void free_cache_attributes(unsigned int cpu)
cpuid4_info[cpu] = NULL;
}
-static int __devinit detect_cache_attributes(unsigned int cpu)
+static int __cpuinit detect_cache_attributes(unsigned int cpu)
{
struct _cpuid4_info *this_leaf;
unsigned long j;
@@ -511,7 +501,7 @@ static void cpuid4_cache_sysfs_exit(unsigned int cpu)
free_cache_attributes(cpu);
}
-static int __devinit cpuid4_cache_sysfs_init(unsigned int cpu)
+static int __cpuinit cpuid4_cache_sysfs_init(unsigned int cpu)
{
if (num_cache_leaves == 0)
@@ -542,7 +532,7 @@ err_out:
}
/* Add/Remove cache interface for CPU device */
-static int __devinit cache_add_dev(struct sys_device * sys_dev)
+static int __cpuinit cache_add_dev(struct sys_device * sys_dev)
{
unsigned int cpu = sys_dev->id;
unsigned long i, j;
@@ -579,7 +569,7 @@ static int __devinit cache_add_dev(struct sys_device * sys_dev)
return retval;
}
-static int __devexit cache_remove_dev(struct sys_device * sys_dev)
+static void __cpuexit cache_remove_dev(struct sys_device * sys_dev)
{
unsigned int cpu = sys_dev->id;
unsigned long i;
@@ -588,24 +578,49 @@ static int __devexit cache_remove_dev(struct sys_device * sys_dev)
kobject_unregister(&(INDEX_KOBJECT_PTR(cpu,i)->kobj));
kobject_unregister(cache_kobject[cpu]);
cpuid4_cache_sysfs_exit(cpu);
- return 0;
+ return;
+}
+
+static int __cpuinit cacheinfo_cpu_callback(struct notifier_block *nfb,
+ unsigned long action, void *hcpu)
+{
+ unsigned int cpu = (unsigned long)hcpu;
+ struct sys_device *sys_dev;
+
+ sys_dev = get_cpu_sysdev(cpu);
+ switch (action) {
+ case CPU_ONLINE:
+ cache_add_dev(sys_dev);
+ break;
+ case CPU_DEAD:
+ cache_remove_dev(sys_dev);
+ break;
+ }
+ return NOTIFY_OK;
}
-static struct sysdev_driver cache_sysdev_driver = {
- .add = cache_add_dev,
- .remove = __devexit_p(cache_remove_dev),
+static struct notifier_block cacheinfo_cpu_notifier =
+{
+ .notifier_call = cacheinfo_cpu_callback,
};
-/* Register/Unregister the cpu_cache driver */
-static int __devinit cache_register_driver(void)
+static int __cpuinit cache_sysfs_init(void)
{
+ int i;
+
if (num_cache_leaves == 0)
return 0;
- return sysdev_driver_register(&cpu_sysdev_class,&cache_sysdev_driver);
+ register_cpu_notifier(&cacheinfo_cpu_notifier);
+
+ for_each_online_cpu(i) {
+ cacheinfo_cpu_callback(&cacheinfo_cpu_notifier, CPU_ONLINE,
+ (void *)(long)i);
+ }
+
+ return 0;
}
-device_initcall(cache_register_driver);
+device_initcall(cache_sysfs_init);
#endif
-
diff --git a/arch/i386/kernel/cpu/mcheck/p6.c b/arch/i386/kernel/cpu/mcheck/p6.c
index 3c035b8fa3d..979b18bc95c 100644
--- a/arch/i386/kernel/cpu/mcheck/p6.c
+++ b/arch/i386/kernel/cpu/mcheck/p6.c
@@ -102,11 +102,16 @@ void __devinit intel_p6_mcheck_init(struct cpuinfo_x86 *c)
wrmsr(MSR_IA32_MCG_CTL, 0xffffffff, 0xffffffff);
nr_mce_banks = l & 0xff;
- /* Don't enable bank 0 on intel P6 cores, it goes bang quickly. */
- for (i=1; i<nr_mce_banks; i++) {
+ /*
+ * Following the example in IA-32 SDM Vol 3:
+ * - MC0_CTL should not be written
+ * - Status registers on all banks should be cleared on reset
+ */
+ for (i=1; i<nr_mce_banks; i++)
wrmsr (MSR_IA32_MC0_CTL+4*i, 0xffffffff, 0xffffffff);
+
+ for (i=0; i<nr_mce_banks; i++)
wrmsr (MSR_IA32_MC0_STATUS+4*i, 0x0, 0x0);
- }
set_in_cr4 (X86_CR4_MCE);
printk (KERN_INFO "Intel machine check reporting enabled on CPU#%d.\n",
diff --git a/arch/i386/kernel/cpu/mtrr/if.c b/arch/i386/kernel/cpu/mtrr/if.c
index 1923e0aed26..cf39e205d33 100644
--- a/arch/i386/kernel/cpu/mtrr/if.c
+++ b/arch/i386/kernel/cpu/mtrr/if.c
@@ -149,60 +149,89 @@ mtrr_write(struct file *file, const char __user *buf, size_t len, loff_t * ppos)
return -EINVAL;
}
-static int
-mtrr_ioctl(struct inode *inode, struct file *file,
- unsigned int cmd, unsigned long __arg)
+static long
+mtrr_ioctl(struct file *file, unsigned int cmd, unsigned long __arg)
{
- int err;
+ int err = 0;
mtrr_type type;
struct mtrr_sentry sentry;
struct mtrr_gentry gentry;
void __user *arg = (void __user *) __arg;
switch (cmd) {
+ case MTRRIOC_ADD_ENTRY:
+ case MTRRIOC_SET_ENTRY:
+ case MTRRIOC_DEL_ENTRY:
+ case MTRRIOC_KILL_ENTRY:
+ case MTRRIOC_ADD_PAGE_ENTRY:
+ case MTRRIOC_SET_PAGE_ENTRY:
+ case MTRRIOC_DEL_PAGE_ENTRY:
+ case MTRRIOC_KILL_PAGE_ENTRY:
+ if (copy_from_user(&sentry, arg, sizeof sentry))
+ return -EFAULT;
+ break;
+ case MTRRIOC_GET_ENTRY:
+ case MTRRIOC_GET_PAGE_ENTRY:
+ if (copy_from_user(&gentry, arg, sizeof gentry))
+ return -EFAULT;
+ break;
+#ifdef CONFIG_COMPAT
+ case MTRRIOC32_ADD_ENTRY:
+ case MTRRIOC32_SET_ENTRY:
+ case MTRRIOC32_DEL_ENTRY:
+ case MTRRIOC32_KILL_ENTRY:
+ case MTRRIOC32_ADD_PAGE_ENTRY:
+ case MTRRIOC32_SET_PAGE_ENTRY:
+ case MTRRIOC32_DEL_PAGE_ENTRY:
+ case MTRRIOC32_KILL_PAGE_ENTRY: {
+ struct mtrr_sentry32 __user *s32 = (struct mtrr_sentry32 __user *)__arg;
+ err = get_user(sentry.base, &s32->base);
+ err |= get_user(sentry.size, &s32->size);
+ err |= get_user(sentry.type, &s32->type);
+ if (err)
+ return err;
+ break;
+ }
+ case MTRRIOC32_GET_ENTRY:
+ case MTRRIOC32_GET_PAGE_ENTRY: {
+ struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+ err = get_user(gentry.regnum, &g32->regnum);
+ err |= get_user(gentry.base, &g32->base);
+ err |= get_user(gentry.size, &g32->size);
+ err |= get_user(gentry.type, &g32->type);
+ if (err)
+ return err;
+ break;
+ }
+#endif
+ }
+
+ switch (cmd) {
default:
return -ENOTTY;
case MTRRIOC_ADD_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err =
mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
file, 0);
- if (err < 0)
- return err;
break;
case MTRRIOC_SET_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_add(sentry.base, sentry.size, sentry.type, 0);
- if (err < 0)
- return err;
break;
case MTRRIOC_DEL_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_file_del(sentry.base, sentry.size, file, 0);
- if (err < 0)
- return err;
break;
case MTRRIOC_KILL_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_del(-1, sentry.base, sentry.size);
- if (err < 0)
- return err;
break;
case MTRRIOC_GET_ENTRY:
- if (copy_from_user(&gentry, arg, sizeof gentry))
- return -EFAULT;
if (gentry.regnum >= num_var_ranges)
return -EINVAL;
mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
@@ -217,60 +246,59 @@ mtrr_ioctl(struct inode *inode, struct file *file,
gentry.type = type;
}
- if (copy_to_user(arg, &gentry, sizeof gentry))
- return -EFAULT;
break;
case MTRRIOC_ADD_PAGE_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err =
mtrr_file_add(sentry.base, sentry.size, sentry.type, 1,
file, 1);
- if (err < 0)
- return err;
break;
case MTRRIOC_SET_PAGE_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_add_page(sentry.base, sentry.size, sentry.type, 0);
- if (err < 0)
- return err;
break;
case MTRRIOC_DEL_PAGE_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_file_del(sentry.base, sentry.size, file, 1);
- if (err < 0)
- return err;
break;
case MTRRIOC_KILL_PAGE_ENTRY:
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
- if (copy_from_user(&sentry, arg, sizeof sentry))
- return -EFAULT;
err = mtrr_del_page(-1, sentry.base, sentry.size);
- if (err < 0)
- return err;
break;
case MTRRIOC_GET_PAGE_ENTRY:
- if (copy_from_user(&gentry, arg, sizeof gentry))
- return -EFAULT;
if (gentry.regnum >= num_var_ranges)
return -EINVAL;
mtrr_if->get(gentry.regnum, &gentry.base, &gentry.size, &type);
gentry.type = type;
+ break;
+ }
+
+ if (err)
+ return err;
+ switch(cmd) {
+ case MTRRIOC_GET_ENTRY:
+ case MTRRIOC_GET_PAGE_ENTRY:
if (copy_to_user(arg, &gentry, sizeof gentry))
- return -EFAULT;
+ err = -EFAULT;
+ break;
+#ifdef CONFIG_COMPAT
+ case MTRRIOC32_GET_ENTRY:
+ case MTRRIOC32_GET_PAGE_ENTRY: {
+ struct mtrr_gentry32 __user *g32 = (struct mtrr_gentry32 __user *)__arg;
+ err = put_user(gentry.base, &g32->base);
+ err |= put_user(gentry.size, &g32->size);
+ err |= put_user(gentry.regnum, &g32->regnum);
+ err |= put_user(gentry.type, &g32->type);
break;
}
- return 0;
+#endif
+ }
+ return err;
}
static int
@@ -310,7 +338,8 @@ static struct file_operations mtrr_fops = {
.read = seq_read,
.llseek = seq_lseek,
.write = mtrr_write,
- .ioctl = mtrr_ioctl,
+ .unlocked_ioctl = mtrr_ioctl,
+ .compat_ioctl = mtrr_ioctl,
.release = mtrr_close,
};
diff --git a/arch/i386/kernel/cpu/proc.c b/arch/i386/kernel/cpu/proc.c
index 8bd77d948a8..41b871ecf4b 100644
--- a/arch/i386/kernel/cpu/proc.c
+++ b/arch/i386/kernel/cpu/proc.c
@@ -44,7 +44,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
/* Intel-defined (#2) */
- "pni", NULL, NULL, "monitor", "ds_cpl", NULL, NULL, "est",
+ "pni", NULL, NULL, "monitor", "ds_cpl", "vmx", NULL, "est",
"tm2", NULL, "cid", NULL, NULL, "cx16", "xtpr", NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-05 09:25:59 +0000